Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

1. Introduction to Anatomy & Physiology

Feedback Loops: Negative Feedback

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Feedback Loops: Negative Feedback

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Multiple Choice

In a negative feedback loop, what role does the effector play?

It monitors changes in the environment.

It amplifies the initial stimulus.

It initiates the feedback loop.

It reduces or counteracts the initial stimulus.

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Verified step by step guidance

Understand the concept of a negative feedback loop: Negative feedback loops are mechanisms that help maintain homeostasis by counteracting changes in the body. They work to bring the system back to its set point.

Identify the components of a negative feedback loop: Typically, a negative feedback loop consists of a sensor, control center, and effector. The sensor detects changes in the environment, the control center processes this information, and the effector acts to restore balance.

Clarify the role of the effector: The effector is responsible for producing a response that reduces or counteracts the initial stimulus. This action helps to bring the system back to its normal state.

Differentiate the effector's role from other components: Unlike the sensor, which monitors changes, or the control center, which initiates the feedback loop, the effector directly influences the system by implementing the necessary changes.

Apply this understanding to the problem: Recognize that in a negative feedback loop, the effector's role is crucial in reducing or counteracting the initial stimulus, thereby maintaining homeostasis.